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Stockholder's Equity - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
9 Months Ended
Sep. 30, 2022
Dec. 31, 2021
Sep. 30, 2021
Class Of Stock [Line Items]      
Number of common stock in warrant 323,892 323,892  
Weighted average exercise price $ 4.31 $ 4.31  
Weighted average remaining contractual life 11 months 26 days    
Maximum [Member] | Sales Agreement [Member]      
Class Of Stock [Line Items]      
Sale of stock, authorized amount of common stock     $ 50.0